Explanation

The common ratio of a geometric sequence cannot be zero because if it were, the sequence would become a series of zeros, which is not considered a geometric sequence. 

Explanation

COPE WITH (قابو پانا / نمٹنا)

Deal with (نمٹنا)

Explanation

The rate of E1 reactions depend only on the concentration of the substrate. 

Explanation

Back e.m.f (electromotive force) is the voltage opposing the applied voltage, commonly seen in motors and inductive circuits.

When back e.m.f = 0, there is no opposing voltage, so the entire applied voltage appears across the circuit's resistance.

From Ohm's Law:

I=V−back e.m.f​/R

If back e.m.f = 0, then

I=V/R​(maximum possible current)

Explanation

Electronic transitions occur when electrons jump between energy levels in an atom.

These transitions typically release photons in the infrared, visible, or ultraviolet regions — depending on the energy difference.

γ-radiations (gamma rays) are high-energy photons emitted from the nucleus, not from electronic transitions.

They are associated with nuclear reactions, not electronic energy level changes.

Explanation

In projectile motion, the velocity is maximum at the point of projection and just before hitting the ground,

Because that’s where the full initial speed is present (both vertical and horizontal components).

At the highest point, the vertical component becomes zero,

And only the horizontal velocity remains, so the overall speed is less than at the point of projection.

Explanation

One mole of any compound contains 6.02x10^23 molecules of that compound. 

In one molecule of SO2, there is one sulfur atom and two oxygen atoms. 

Therefore, one mole of SO2 contains 6.02x10^23 sulfur atoms. 

Explanation

 Care kills the lamb. 

دیکھ بھال بھیڑ کے بچے کو مار دیتی ہے۔

This old proverb means: Too much worry or anxiety can harm the innocent or gentle.

"Care" here means worry or anxiety (not carefulness).

"Lamb" symbolizes someone gentle, innocent, or weak.

Explanation

SQUID stands for Superconducting Quantum Interference Device.

It is an extremely sensitive magnetometer used to detect very weak magnetic fields, such as those produced by brain activity (in magnetoencephalography, or MEG).

It can detect magnetic fields as small as 10⁻¹⁴ tesla, making it ideal for brain studies.

Explanation

 A proton is a fundamental particle found in the nucleus of an atom.

Its mass is relatively large compared to other particles like electrons, but smaller than some other subatomic particles.

Mesons are a type of particle made up of a quark and an antiquark.

Their mass range varies, but generally falls between that of a proton and an electron.

Some mesons, like the very heavy upsilon mesons, can have a mass significantly greater than a proton.